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D
TROUBLESHOOTING
SAFETY PRECAUTIONS
lf ANY of the following conditions occurs, turn off your unit immediately!
•
The power cord is damaged or abnormally warm
•
You smell a burning odor
•
The unit emits loud or abnormal sounds
•
A power fuse blows or the circuit breaker frequently trips
•
Water or other objects fall into or out of the unit
DO NOT ATTEMPT TO FIX THESE YOURSELF! CONTACT AN AUTHORIZED SERVICE PROVIDER
IMMEDIATELY!
Common Issues
The following problems are not a malfunction and in most situations will not require repairs.
Issue
The appliance does not turn on when
pressing ON/OFF button
The appliance changes from COOL/
HEAT mode to FAN mode
The indoor unit emits white mist
Both the indoor and outdoor units
emit white mist
The indoor unit makes noises
Both the indoor unit and outdoor
unit make noises
The outdoor unit makes noises
Dust is emitted from either the indoor
or outdoor unit
Possible Causes
The appliance has a 3-minute protection feature that prevents the ap-
pliance from overloading. The appliance cannot be restarted within three
minutes of being turned off.
The appliance may change its setting to prevent frost from forming on
the appliance. Once the temperature increases, the appliance will start
operating in the previously selected mode again.
The set temperature has been reached, at which point the appliance turns
off the compressor. The appliance will continue operating when the tem-
perature fluctuates again.
In humid regions, a large temperature difference between the room's air
and the conditioned air can cause white mist.
When the appliance restarts in HEAT mode after defrosting, white mist
may be emitted due to moisture generated from the defrosting process.
A rushing air sound may occur when the louver resets its position.
A squeaking sound may occur after running the appliance in HEAT mode
due to expansion and contraction of the appliance's plastic parts.
Low hissing sound during operation: This is normal and is caused by refri-
gerant gas flowing through both indoor and outdoor units.
Low hissing sound when the system starts, has just stopped running, or is
defrosting: This noise is normal and is caused by the refrigerant gas stop-
ping or changing direction.
Squeaking sound: Normal expansion and contraction of plastic and metal
parts caused by temperature changes during operation can cause
squeaking noises.
The appliance will make different sounds based on its current operating
mode.
The appliance may accumulate dust during extended periods of non-use,
which will be emitted when the appliance is turned on. This can be miti-
gated by covering the unit during long periods of inactivity.
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